US Bridges

12th Street over Bald Eagle Creek

Fair

Blair County, Pennsylvania · Borough of Tyrone · Structure no. 000000000005999

Built
1937
88 years old, rebuilt 2014
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
276
2022 count
Owner
County
County Highway Agency

About this bridge

12th Street over Bald Eagle Creek is a steel stringer/multi-beam or girder carrying 12th Street over Bald Eagle Creek in Blair County, Pennsylvania. It was built in 1937 and reconstructed in 2014, so it is 88 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 276 vehicles a day, roughly 1% of them trucks, projected to reach 305 by 2042. The structure is 71 ft (21.6 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Carries12th Street
CrossesBald Eagle Creek
LocationBorough of Tyrone
RouteCity Street 0
Coordinates40.67222, -78.23613
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.5 US tons
Inventory rating55.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span68 ft (20.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic276 (2022)
Projected traffic305 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$974,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 12th Street over Bald Eagle Creek built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2014.

What condition is 12th Street over Bald Eagle Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2022.

How much traffic does 12th Street over Bald Eagle Creek carry?

About 276 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is 12th Street over Bald Eagle Creek?

The structure is 71 ft (21.6 m) long with a longest span of 68 ft (20.7 m) and a deck 35 ft wide.

Who owns 12th Street over Bald Eagle Creek?

It is owned by the County Highway Agency.